Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is inexpensive and economical, and to provide pushing forward disposal of defective products. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material, a woody reinforcement, a finely dividing fiber reinforced cement product and/or a finely dividing intermediate of fiber reinforced cement product which is produced by said raw materials.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is an inorganic hollow material and/or an inorganic spherical material and a finely dividing inorganic hollow material and/or a finely dividing inorganic spherical material. The effects of the present invention, it is possible to obtain a fiber reinforced cement product having good bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is inexpensive and economical, and to provide pushing forward disposal of defective products. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material, a woody reinforcement and a finely dividing fiber reinforced cement product which is produced by said raw materials and cured in an autoclave.

Abstract: A fiber reinforced cement composition having the following raw material composition is provided to manufacture a fiber reinforced cement product which is excellent in bending strength, dimension stability, handling property, flexibility performance, and processability such as nail performance, as well as to provide a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material and a woody reinforcement in a mass ratio of CaO to SiO2 contained in the hydraulic inorganic material and the siliceous material in the raw materials in a range of from 23:77 to 60:40.

Abstract: This invention is a fiber reinforced cement composition comprising the following raw materials: a hydraulic inorganic material, a siliceous material, and a woody reinforcement wherein the siliceous material is a mixture of an average particle size of not less than 15 um and not more than 50 um which is burned ash of coal and/or rhyolite and an average particle size of not less than 1 um and not more than 15 um which is burned ash of coal and/or rhyolite.

Abstract: The object of the present invention is to provide an inorganic board whose dimensional stability, anti-freezing and fusing properties, and the like are much improved. To attain this object, an inorganic board is manufactured using a method comprising: preparing a raw material slurry by the dispersing of a cementitious material, silica-containing material, woody reinforcement, and mica in water, forming a papered mat by sheet forming the raw material slurry, pressing the papered mat, and curing the pressed papered mat in an autoclave at a temperature higher than 150° C., wherein the mass ratio of the cementitious inorganic material and silica-containing material is set to be in the range of between 35:65 and 45:55, to promote the curing reaction of the inorganic board and improve its dimensional stability and anti-freezing and fusing properties.

Abstract: A fiber reinforced cement composition comprising the following raw materials: not less than 25% by mass and not more than 45% by mass of a hydraulic inorganic material; not less than 50% by mass and not more than 65% by mass of a siliceous material; not less than 5% by mass and not more than 12% by mass of woody reinforcement; not less than 0.25% by mass and not more than 1.5% by mass of a water soluble resin, wherein the hydraulic inorganic material is a Portland cement, the siliceous material is an amorphous material selected from the group consisting of fly ash, silica fume, blast furnace slag, perlite powder, glass powder, and mixtures thereof; the woody reinforcement is needle-leaves-tree unbleached kraft pulp and/or needle-leaves-tree bleached kraft pulp and used newspaper, and the water soluble resin is a polyvinyl alcohol resin.

Abstract: Provided is a fiber reinforced cement board having good installation properties such as nail performance, flexibility performance and handling performance, as well as other favorable physical properties. The board has an absolute dry specific gravity of not less than 1.20 and not more than 1.30 and comprises as raw materials not less than 28% by mass and not more than 32% by mass of a hydraulic inorganic material, not less than 54% by mass and not more than 58% by mass of a siliceous material, not less than 8% by mass and not more than 12% by mass of a woody reinforcement, not less than 2% by mass and not more than 5% by mass of mica, and not less than 0.5% by mass and not more than 1.25% by mass of a water-soluble resin.

Abstract: The object of the present invention is to provide an inorganic board which has high mechanical strength, much improved dimensional stability, freezing and fusion resistance. To attain said object the present invention provides an inorganic board made of a cured material being a raw material mixture containing a cementitious inorganic material, a silica containing material, a woody reinforcement, and a water soluble synthetic resin, wherein the mass ratio of said cementitious inorganic material and said silica containing material is set to be in the range of between 35:65 and 45:55, to promote the hardening reaction of said inorganic board, and to reduce the unreacted materials, solving the problem of the retardation of the cement hardening by said water soluble synthetic resin.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is inexpensive and economical, and to provide pushing forward disposal of defective products. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material, a woody reinforcement and a finely dividing fiber reinforced cement product which is produced by said raw materials and cured in an autoclave.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is an inorganic hollow material and/or an inorganic spherical material and a finely dividing inorganic hollow material and/or a finely dividing inorganic spherical material. The effects of the present invention, it is possible to obtain a fiber reinforced cement product having good bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is inexpensive and economical, and to provide pushing forward disposal of defective products. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material, a woody reinforcement, a finely dividing fiber reinforced cement product and/or a finely dividing intermediate of fiber reinforced cement product which is produced by said raw materials.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is a mixture of an average particle size of not less than 15 ?m and not more than 50 ?m which is burned ash of coal and/or rhyolite and an average particle size of not less than 1 ?m and not more than 15 ?m which is burned ash of coal and/or rhyolite.

Abstract: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is a mixture of an average particle size of not less than 15 ?m and not more than 50 ?m which is burned ash of coal and/or rhyolite and an average particle size of not less than 1 ?m and not more than 15 ?m which is burned ash of coal and/or rhyolite.

Abstract: The present invention relates to a fiber reinforced cement composition and products and a manufacturing process thereof. The fiber reinforced cement product and the manufacturing process are safe for human body, and, even more particularly, bending strength and dimensional stability and construction characteristics such as nail performance of the product are preferable. In other words, the fiber reinforced cement composition comprising a hydraulic inorganic material, a siliceous material and woody reinforcement, wherein a siliceous material is amorphous material.

Abstract: Provided is a fiber reinforced cement board having good installation properties such as nail performance, flexibility performance and handling performance, as well as other favorable physical properties. The board has an absolute dry specific gravity of not less than 1.20 and not more than 1.30 and comprises as raw materials not less than 28% by mass and not more than 32% by mass of a hydraulic inorganic material, not less than 54% by mass and not more than 58% by mass of a siliceous material, not less than 8% by mass and not more than 12% by mass of a woody reinforcement, not less than 2% by mass and not more than 5% by mass of mica, and not less than 0.5% by mass and not more than 1.25% by mass of a water-soluble resin.

Abstract: The object of the present invention is to provide an inorganic board whose dimensional stability, anti-freezing and fusing properties, and the like are much improved. To attain this object, an inorganic board is manufactured using a method comprising: preparing a raw material slurry by the dispersing of a cementitious material, silica-containing material, woody reinforcement, and mica in water, forming a papered mat by sheet forming the raw material slurry, pressing the papered mat, and curing the pressed papered mat in an autoclave at a temperature higher than 150° C., wherein the mass ratio of the cementitious inorganic material and silica-containing material is set to be in the range of between 35:65 and 45:55, to promote the curing reaction of the inorganic board and improve its dimensional stability and anti-freezing and fusing properties.

Abstract: A fiber reinforced cement composition having the following raw material composition is provided to manufacture a fiber reinforced cement product which is excellent in bending strength, dimension stability, handling property, flexibility performance, and processability such as nail performance, as well as to provide a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material and a woody reinforcement in a mass ratio of CaO to SiO2 contained in the hydraulic inorganic material and the siliceous material in the raw materials in a range of from 23:77 to 60:40.

Abstract: The object of the present invention is to provide an inorganic board which has high mechanical strength, much improved dimensional stability, freezing and fusion resistance. To attain said object, the present invention provides an inorganic board made of a cured material being a raw material mixture containing a cementitious inorganic material, a silica containing material, a woody reinforcement, and a water soluble synthetic resin, wherein the mass ratio of said cementitious inorganic material and said silica containing material is set to be in the range of between 35:65 and 45:55, to promote the hardening reaction of said inorganic board, and to reduce the unreacted materials, solving the problem of the retardation of the cement hardening by said water soluble synthetic resin.